Determine Which of the Following Pairs of Reactants Will Result

question 111

Multiple Choice

Determine which of the following pairs of reactants will result in a spontaneous reaction at 25 °C.

• A)Pb²⁺(aq)+ Cu(s); if E^o(Pb²⁺/Pb)= -0.13V and E^o(Cu²⁺/Cu)= +0.16V
• B)Ag⁺(aq)+ Br⁻(aq); if E^o(Ag⁺/Ag)= 0.80V and E^o(Br₂/Br^-)= +1.09V
• C)Li⁺(aq)+ Al(s); if E^o(Li⁺/Li)= -3.04V and E^o(Al³⁺/Al)= -1.66V
• D)Fe³⁺(aq)+ Ni(s); if E^o(Fe³⁺/Fe)= -0.04V and E^o(Ni²⁺/Ni)= -0.23V
• E)Cd²⁺(aq)+ I^-(aq); if E^o(Cd²⁺/Cd)= -0.40V and E^o(I₂/I^-)= + 0.54V

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